Potato Gratin is one of my favorite sides for any meal and would be an excellent side or holiday dinners! Layers of creamy potatoes and lots of melty cheese in this irresistible casserole!
Potato Gratin is made in a shallow dish with thin slices of potatoes cooked in a creamy sauce and topped with cheese that gets all crispy and browned when baked.
A must-have side dish for entertaining guests or special occasions. We love it paired with Easy Marinated Pork Chops or Grilled Steaks. It's also a staple with our favorite Peach and Ginger Glazed Ham.
Just take me to the Potato Gratin Recipe:
If you are just looking for the recipe, scroll on down to the very bottom where you will find the easy printable recipe card. Otherwise read on for my step by step instructions, plus tips and tricks for this easy side dish.
How to Make Potato Gratin:
- Slice potatoes thin using a mandoline and set aside.
- Sauté half of a diced onion and minced garlic in butter until translucent. Whisk in flour and salt and cook about 2 minutes.
- Whisk in milk, broth and heavy cream. Continue to cook, whisking constantly until thickened. Remove from heat.
- Alternate layers of potatoes, cream sauce and shredded cheese into a shallow dish, ending with cheese.
- Bake potato casserole about 1 hour 25 minutes or until potatoes are tender and top is starting to brown.
- Garnish with fresh herbs such as thyme. Allow to rest 15 minutes before serving.
The key to a delicious Potato Gratin is to give it plenty of time to cook and it's best if it has time to rest before serving.
I am so looking forward to Thanksgiving this year. I plan to actually take the day off and enjoy the time with my family.
I hope y'all have a wonderful Thanksgiving with lots of delicious food and good times with your family and friends!
More Side Dish Recipes to Try:
Cheesy Hashbrown Casserole goes with any meal of the day and it's a favorite for the holidays.
Creamy Coleslaw is a great addition to just about every meal. This slaw is flavorful and delicious. Easy to make ahead of your dinner.
Creamy Dill Potato Salad is a favorite for cookouts and holiday dinners. Made with red potatoes and a super simple dill dressing.
Roasted Garlic Asparagus with Lemon Sauce is a fantastic vegetable dish to add to any holiday dinner.
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Helpful Tools for Potato Gratin:
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- 6-7 medium potatoes, washed, peeled and thinly sliced
- 3 tablespoons butter
- ½ large onion, diced
- 1 teaspoon minced garlic
- 1 teaspoon kosher salt
- 3 tablespoons all purpose flour
- 1 cup milk
- ½ cup heavy cream
- ½ cup broth
- 1 cup grated Swiss cheese
- 1 cup grated Dubliner cheese (or white cheddar)
- fresh thyme for garnish
Preheat oven to 375 degrees.
Grease a baking dish and set aside. (I used a deep pie dish)
Add butter to a saucepan and add onions and garlic. Place over medium heat and cook, stirring often until onions are translucent. Add flour and salt and whisk together, cooking for about 2 minutes. Add milk, cream and broth and continue whisking until sauce thickens. Remove from heat.
Add a layer of potato slices to cover bottom of dish. Pour about ⅓ of sauce over potatoes and spread evenly.
Mix the shredded cheese together. Sprinkle about ⅓ of cheese over sauce. Continue layering ending with cheese.
Bake for 1 hour 15 minutes to 1 hour 25 minutes or until potatoes are cooked through. Garnish with fresh thyme.
Allow potato gratin to set 15 minutes before serving.
Katrina @ Warm Vanilla Sugar
This gratin sounds wonderful! I love the two types of cheese on top 🙂
Thanks Katrina! Happy Thanksgiving!
Potatoes are the key to my heart every time. I don't care that they are white and evilly full of carbs, I will happily and unapologetically eat a boatload of them! Add cream and herbs and cheese, and I may never eat anything else ever again. See? I have a bit of a Portion Control Problem when it comes to potatoes! These seriously sound so good, Miss! I hope you have a quiet, peaceful and wonderful Thanksgiving. And of course it will be delicious!
Thanks Jenni! I hope your holiday is wonderful as well!
There's nothing better than cheesy potatoes! Now I'm wishing we didn't have to have mashed potatoes with our turkey---but there would be a revolt if I altered our menu! Enjoy your day off!!!
Jane, The Heritage Cook
Oh my, these Irish eyes are smiling with this dish Milisa! There is no better side dish to me that potatoes, especially when you have them bathing in a rich, cheesy bechamel sauce. I am now dreaming of this for every meal for the rest of the year, LOL! Happy Thanksgiving to you and yours!
Thanks Jane! Happy Thanksgiving to you too!
This is beautiful, Milisa! I love the color of the baking dish you used...where did you get it? 🙂
Thanks Julie! It is a pie plate from Fiesta. I hope you have a wonderful Thanksgiving and thanks so much for dropping by.
This is great.. what about adding a single sweet potato along while preparing this recipe >>??
Heather | All Roads Lead to the Kitchen
Hands-down - PURE COMFORT FOOD! My oldest son could eat only potatoes and be happy for the rest of his life, so I know I have to make this soon. My cheeks are seriously tingling in anticipation a little looking at these photos....